def test_welcome_email(self):
user = User.objects.filter().order_by('?')[0]
with mock_signal_receiver(welcome_email) as receiver:
welcome_email.send(sender=self, user=user)
self.assertEqual(receiver.call_count, 1)
send_mail = mail.outbox[0]
self.assertEqual(len(mail.outbox), 1)
expected_to = [user.email]
self.assertEqual(expected_to, send_mail.to)
def post_save(self, obj, created=False):
welcome_email.send(sender=self, user=obj)